diff --git a/src/Encryption.cs b/src/Encryption.cs
index a3a3eaf..03b72c0 100644
--- a/src/Encryption.cs
+++ b/src/Encryption.cs
@@ -388,14 +388,12 @@ j4WcDuXc2CTHgH8gFTNhp/Y8/SpDOhvn9QIDAQAB
 
 		internal static async Task<InputCheckPasswordSRP> Check2FA(Account_Password accountPassword, Func<Task<string>> getPassword)
 		{
-			bool newPassword = false;
 			if (accountPassword.current_algo is not PasswordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow algo)
 				if (accountPassword.current_algo == null && (algo = accountPassword.new_algo as PasswordKdfAlgoSHA256SHA256PBKDF2HMACSHA512iter100000SHA256ModPow) != null)
 				{
 					int salt1len = algo.salt1.Length;
 					Array.Resize(ref algo.salt1, salt1len + 32);
 					RNG.GetBytes(algo.salt1, salt1len, 32);
-					newPassword = true;
 				}
 				else
 					throw new ApplicationException("2FA authentication uses an unsupported algo: " + accountPassword.current_algo?.GetType().Name);
@@ -431,7 +429,7 @@ j4WcDuXc2CTHgH8gFTNhp/Y8/SpDOhvn9QIDAQAB
 			var x = BigEndianInteger(sha256.Hash);
 
 			var v = BigInteger.ModPow(g, x, p);
-			if (newPassword)
+			if (accountPassword.current_algo == null) // we're computing a new password
 			{
 				await validTask;
 				return new InputCheckPasswordSRP { A = v.To256Bytes() };
diff --git a/src/TL.Extensions.cs b/src/TL.Extensions.cs
index 2c6f5b8..be79d66 100644
--- a/src/TL.Extensions.cs
+++ b/src/TL.Extensions.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Threading.Tasks;
 using System.Web;
 
 namespace TL
@@ -34,6 +35,11 @@ namespace TL
 		/// <param name="structure">The structure having a <c>users</c></param>
 		public static void CollectUsersChats(this IPeerResolver structure, Dictionary<long, User> users, Dictionary<long, ChatBase> chats)
 			=>  structure.UserOrChat(new CollectorPeer { _users = users, _chats = chats });
+
+		public static Task<Messages_Chats> Messages_GetChats(this WTelegram.Client _) => throw new ApplicationException("The method you're looking for is Messages_GetAllChats");
+		public static Task<Messages_Chats> Channels_GetChannels(this WTelegram.Client _) => throw new ApplicationException("The method you're looking for is Messages_GetAllChats");
+		public static Task<UserBase[]> Users_GetUsers(this WTelegram.Client _) => throw new ApplicationException("The method you're looking for is Messages_GetAllDialogs");
+		public static Task<Messages_MessagesBase> Messages_GetMessages(this WTelegram.Client _) => throw new ApplicationException("If you want to get the messages from a chat, use Messages_GetHistory");
 	}
 
 	public static class Markdown